CN116744814A

CN116744814A - Head-mounted display

Info

Publication number: CN116744814A
Application number: CN202180083803.6A
Authority: CN
Inventors: K·斯奈德; I·弗雷泽; J·雅各布斯; C·S·康利四世; I·A·麦克拉肯; C·加卢瓦; J·安德伍德; W·温特斯; D·詹森
Original assignee: Valve Corp
Current assignee: Valve Corp
Priority date: 2020-12-15
Filing date: 2021-12-15
Publication date: 2023-09-12
Also published as: WO2022132960A1; JP2024501472A; US11789277B2; EP4228467A1; KR20230121728A; US20220187609A1

Abstract

A head mounted display includes a front portion having a display housing and a rear portion having a rear housing. A first member extends between the front portion and the rear portion and is adjustable via actuation of a first rotatable actuator and a first wiring mechanism. A second member extends between the front portion and the rear portion and is adjustable via actuation of a second rotatable actuator and a second wiring mechanism. A third member extends between the front portion and the rear portion and is adjustable via the actuation of the second rotatable actuator and a third wiring mechanism.

Description

Head-mounted display

Cross Reference to Related Applications

The present application claims priority from commonly assigned, co-pending U.S. provisional patent application Ser. No. 63/125,503 filed 12/15/2020. Application Ser. No. 63/125,503 is incorporated by reference in its entirety.

Background

Head mounted displays are used in a variety of fields including engineering, medical, military and video games. In some cases, the head mounted display presents information or images to the user as part of a virtual reality or augmented reality environment. As an example, a user may wear a head mounted display while playing a video game to immerse the user himself in a virtual environment.

Conventional head mounted displays provide little or no adjustment to accommodate different head sizes and/or to adjust the tightness of the head mounted display. Thus, some users may find it difficult to comfortably wear a head mounted display. For example, if too close to the skin, the head mounted display may be uncomfortable to wear. Alternatively, if too loose, the head mounted display may not be properly secured to the user. In addition, users have different facial structures and shapes.

Drawings

The specific embodiments are described with reference to the accompanying drawings. In these figures, the leftmost digit(s) of a reference number identifies the figure in which the reference number first appears. The same or similar reference numbers in different drawings indicate similar or identical items. The systems shown in the drawings are not to scale and the components in the drawings may not be to scale relative to each other.

Fig. 1 illustrates a front isometric view of an exemplary head mounted display according to an embodiment of the present disclosure.

Fig. 2 illustrates a rear isometric view of the head mounted display of fig. 1, according to an embodiment of the present disclosure.

Fig. 3 illustrates a top view of the head mounted display of fig. 1, according to an embodiment of the present disclosure.

Fig. 4 illustrates a rear view of the head mounted display of fig. 1, according to an embodiment of the present disclosure.

Fig. 5A illustrates a first side view of the head mounted display of fig. 1, according to an embodiment of the present disclosure.

Fig. 5B illustrates a second side view of the head mounted display of fig. 1, according to an embodiment of the present disclosure.

Fig. 6A illustrates exemplary components of the head mounted display of fig. 1 in a retracted state according to an embodiment of the present disclosure.

Fig. 6B illustrates the component of fig. 6A in an expanded state according to an embodiment of the present disclosure.

Fig. 7A illustrates a first isometric view of an exemplary actuator of the head mounted display of fig. 1, according to an embodiment of the present disclosure.

Fig. 7B shows a second isometric view of the actuator of fig. 7A, according to an embodiment of the present disclosure.

Fig. 8 illustrates a side view of an exemplary actuator disposed within a housing of the head mounted display of fig. 1, according to an embodiment of the present disclosure.

Fig. 9 illustrates an isometric view showing an exemplary rear strap of the head mounted display of fig. 1, according to an embodiment of the present disclosure.

Fig. 10A illustrates a first actuator of the head mounted display of fig. 1 engaging one or more cables for adjusting the vertical position of the head mounted display on a user, according to an embodiment of the present disclosure.

Fig. 10B illustrates a second actuator of the head mounted display of fig. 1 engaging one or more cables for adjusting tightness of the head mounted display on a user, according to an embodiment of the present disclosure.

Fig. 10C illustrates a first actuator of the head mounted display of fig. 1 engaging one or more cables for adjusting the vertical position of the head mounted display on a user, according to an embodiment of the present disclosure.

Fig. 11 illustrates an exemplary top member coupled to the head mounted display of fig. 1 for adjusting one or more cables of a vertical position of the head mounted display on a user according to an embodiment of the present disclosure.

Fig. 12 illustrates an additional view showing one or more cables of fig. 11 for adjusting vertical position according to an embodiment of the present disclosure.

Fig. 13 illustrates one or more cables coupled to an exemplary lateral member of the head mounted display of fig. 1 for adjusting tightness of the head mounted display on a user according to embodiments of the present disclosure.

Fig. 14 illustrates an additional view of one or more cables of fig. 13 showing a device for adjusting tightness of a head mounted display according to an embodiment of the present disclosure.

Fig. 15A illustrates an exemplary torsion spring disposed within a lateral member of the head mounted display of fig. 1 in a first position in accordance with an embodiment of the present disclosure.

Fig. 15B illustrates the torsion spring of fig. 15A disposed in a second position according to an embodiment of the present disclosure.

Fig. 16A-16D illustrate various views of the torsion spring of fig. 15A according to embodiments of the present disclosure.

Fig. 17 illustrates a front isometric view of an exemplary head mounted display according to an embodiment of the present disclosure.

Fig. 18 illustrates a rear isometric view of the head mounted display of fig. 17, according to an embodiment of the present disclosure.

Fig. 19A illustrates a front view of the head mounted display of fig. 17, according to an embodiment of the present disclosure.

Fig. 19B illustrates a rear view of the head mounted display of fig. 17, according to an embodiment of the present disclosure.

Fig. 20A illustrates a first cross-sectional view of an exemplary speaker of the head mounted display of fig. 17, in accordance with an embodiment of the present disclosure.

Fig. 20B illustrates a second cross-sectional view of a speaker of the head mounted display of fig. 17, according to an embodiment of the present disclosure.

Fig. 21 illustrates one or more cables for adjusting the vertical position of the head mounted display of fig. 17 on a user according to an embodiment of the present disclosure.

Fig. 22 illustrates a rear isometric view of an exemplary head mounted display according to an embodiment of the present disclosure.

Fig. 23A illustrates a side view of an exemplary actuator of the head mounted display of fig. 22, in accordance with an embodiment of the present disclosure.

Fig. 23B shows a cross-sectional view of the actuator of fig. 23A, according to an embodiment of the present disclosure.

Fig. 24A shows a first isometric view of the actuator of fig. 23A, according to an embodiment of the present disclosure.

Fig. 24B shows a second isometric view of the actuator of fig. 23A, according to an embodiment of the disclosure.

Fig. 25 illustrates an isometric view of one or more components of the head mounted display of fig. 22, according to an embodiment of the present disclosure.

Fig. 26 illustrates a rear view of one or more components of fig. 25 engaged with the actuator of fig. 23A, in accordance with an embodiment of the present disclosure.

Fig. 27 shows an isometric view of one or more components of fig. 25 engaged with the actuator of fig. 23A, in accordance with an embodiment of the present disclosure.

Fig. 28A illustrates a cross-sectional view of an exemplary planetary gear transmission of an exemplary head mounted display according to an embodiment of the present disclosure.

Fig. 28B shows an isometric view of the planetary gear transmission of fig. 28A, according to an embodiment of the present disclosure.

Fig. 28C shows a transparent view of the planetary gear transmission of fig. 28A, according to an embodiment of the present disclosure.

Fig. 29A illustrates a front isometric view of an exemplary face gasket according to an embodiment of the present disclosure.

Fig. 29B illustrates a plan view of the example face gasket of fig. 29A, according to an embodiment of the present disclosure.

Fig. 29C illustrates a cross-sectional view of the example face gasket of fig. 29A, according to an embodiment of the present disclosure.

Detailed Description

As described above, head Mounted Displays (HMDs) have a wide range of applications, and in some cases may need to accommodate different head sizes between different users. However, conventional HMDs provide little or no adjustment to accommodate different users and/or to tighten gradually. For example, conventional HMDs may use elastic bands or hook and loop bands to secure the HMD. However, such mechanisms are quite crude, basic, and some users may find it difficult to adjust the HMD on the fly and/or in small increments. As such, the HMD may not fit securely and/or the user may take time to readjust the HMD. Such changes detract from the utility of the HMD and/or negatively impact the user experience. In addition, failure to properly fix the HMD may affect the quality of images presented in a Virtual Reality (VR) and/or Augmented Reality (AR) environment. Thus, the HMD may be uncomfortable and/or inconvenient to wear for extended periods of time.

The present application describes, in part, an HMD that fits snugly, comfortably and securely around or to the head of a user. In some cases, HMDs according to the present disclosure may take a variety of forms, including helmets, eye shields, goggles, face masks, glasses, and other head or eye wear worn on the head of a user. The HMD includes a front portion with a display worn on the user's face (adjacent to the eyes) that outputs images (or other content) for viewing. In some cases, the images may be output by an application or a computing device (e.g., a video game controller) communicatively coupled to the HMD. Additionally, in some cases, the user may operate one or more handheld controllers in conjunction with the HMD to further engage the user in a VR or AR environment.

The front of the HMD includes a face washer that abuts the face of the user. The face gasket includes a complementary shape and/or contour for engaging the face of the user and sealing the display (or housing) against the face of the user. The face cushion may comprise an ergonomically compliant, soft, resilient or flexible material (e.g., elastomer, foam, etc.) that conforms to the face. In addition, the facial gasket may be wrapped or encapsulated with a fabric material. The face gasket may compress (e.g., fold upon itself, roll up, etc.) when the HMD is tightened to the user, and may expand (e.g., lengthen) when the HMD is loosened from the user. Such deformation may take into account the different ergonomics of the face and allow the face gasket to conform to and seal against the face of the user. In such cases, the face gasket may have a degree of play or travel for abutting the face of the user.

The rear of the HMD may include a basket, bracket, support, frame, or strap configured to be secured around the rear of the head. In some cases, the strap may engage under and/or with the occiput of the head, thereby clamping the head and securing the HMD. In some cases, the strap or portion of the strap may be spring loaded or tension loaded to maintain a constant pressure on the head. Such pressure may help secure the HMD to the user by ergonomically conforming the belt. The strap may also include one or more hinged joints (e.g., ball joints, pivots, etc.) for clamping against the rear of the head. Further, the strap may include different material thicknesses and/or voids to provide the strap with different levels of stiffness. For example, different voids and/or material thicknesses throughout the strap may provide a spring-like feel to maintain contact against the head and/or conform to differently shaped heads. In some cases, the band may include a portion that engages the head above the occiput and extends circumferentially and/or radially around at least a portion of the head.

The strap may be coupled to a rear housing disposed at a rear of the HMD. The rear housing may house various computing components of the HMD. Additionally, the rear housing may include one or more actuators for adjusting the fit of the HMD on the user. These actuators may be actuated by a user to tighten or loosen the HMD, for example, and/or otherwise adjust the fit of the HMD on the user. For example, between the front of the HMD and the rear of the HMD, one or more members may engage with the head of the user. These members may traverse over the top of the head, along the sides of the head, etc. By adjusting the lengths of these components, either individually or collectively, the user can adjust the fit and feel of the HMD.

In some cases, the member may represent a strand, rope, section, strap, or the like that operably couples the front of the HMD and the rear of the HMD. By actuating the actuator, the member may be extended or retracted to different degrees for tightening and loosening the HMD. Additionally, the actuator may adjust the vertical fit of the HMD on the user, or the vertical position of the display relative to the eye. Thus, the user may utilize the actuator to accommodate different head sizes, provide increments of tightening, and/or position the HMD based on his or her preferences.

The HMD may include various mechanisms for adjusting the configuration of the HMD on the user. In one instance, the routing mechanism may include one or more cables routed through the member and coupled to the member for tightening and/or loosening the HMD. For example, an actuator may be operably coupled to one or more cables and rotated for pulling the one or more cables. Rotating the actuator in a first direction may pull the front and rear portions of the HMD farther, thereby releasing the HMD. Alternatively, rotating the actuator in the second direction may draw the front and rear portions together, thereby tightening the HMD. In such cases, the first cable may be used to loosen the HMD and the second cable may be used to tighten the HMD. That is, pulling on the first cable loosens the HMD and pulling on the second cable tightens the HMD. When the first and second cables are pulled, the first and second cables may be wound around respective spools, rods, or the like.

Further, depending on the direction of actuation (e.g., tightening or loosening), either the first cable or the second cable may be unwound from the respective spool. The slack introduced by one of the first cable or the second cable may be taken up to allow the HMD to be tightened or loosened. In this sense, the first cable and the second cable may operate in unison to provide slack for tightening or loosening the HMD.

Additionally, one or more cables may be used to adjust the vertical fit of the HMD on the user. The vertical fit may adjust the vertical position of the display relative to the user's eyes. Similar to the cables used to tighten and loosen the HMD, the cables used to adjust the vertical fit of the HMD may introduce or retract slack to accommodate different vertical fits.

To illustrate, the HMD may include a plurality of members and/or actuators to secure the HMD to a user. The one or more lateral members may extend between a front of the HMD and a rear of the HMD at opposite lateral sides of the HMD. The first lateral member may extend along a first side (e.g., left side) of the head and the second lateral member may extend along a second side (e.g., right side) of the head when worn by the user. The first end of the lateral member may be hingedly, rotatably, or pivotably coupled to a display worn on the face of the user. The second end of the lateral member may receive a lateral arm extending from the rear housing or rear strap. For example, the lateral member may comprise a socket into which the lateral arm slides. The engagement between the lateral members and the lateral arms operates to couple the front and rear of the HMD. Here, the lateral members and lateral arms may slide over or within each other in a telescoping-like manner to adjust the tightness of the HMD.

Cables of the cabling mechanism may be mounted to the lateral members and/or the lateral arms for tightening and loosening the HMD. As described above, the routing mechanism may include a first cable for loosening the HMD and a second cable for tightening the HMD. Pulling on the first cable via actuation of the actuator in a first direction may cause the lateral arm to extend from the lateral member. In other words, the lateral members and lateral arms may extend away from each other to loosen the HMD. Pulling on the second cable via actuation of the actuator in a second direction may cause the lateral arm to retract within the lateral member. Here, the lateral member and the lateral arm may be moved toward each other to tighten the HMD. Further, in some cases, the lateral members and lateral arms on the first and second sides may operate in unison during tightening and loosening of the HMD. Thus, the sides of the HMD may be simultaneously tightened and loosened.

The cabling of the cabling mechanism may be operably coupled to an actuator, such as a dial, lever, wheel, slider, buckle, arm, and/or knob. The cable may also be wound around a corresponding spool in operative relationship with the actuator. For example, a first cable may be wound and unwound from a first spool/reel, while a second cable may be wound and unwound from a second spool/reel. When the actuator is actuated in a first direction, the first cable may be wound around the first spool and the second cable may be unwound from the second spool. That is, during the unwinding of the HMD, the actuator may be rotated in a first direction to wind the first cable on the first spool, causing the lateral arm to extend from the lateral member and unwind the HMD. At the same time, the second cable may be unwound from the second spool to provide slack for the unwinding of the HMD. To allow the first cable to be pulled and the lateral arm to extend, one end of the first cable may be coupled to the actuator and/or the first spool, while an opposite second end may be coupled to the second lateral member.

Alternatively, during tightening of the HMD, the actuator may be rotated in a second direction to unwind the first cable from the first spool, while the second cable may be wound around the second spool. In this case, the second cable may be pulled to retract the lateral arm within the lateral member for tightening the HMD. To allow the second cable to be pulled and retracted to the lateral arm, one end of the second cable may be coupled to the actuator and/or the second spool, while an opposite second end may be coupled to the lateral arm.

The HMD may include pulleys coupled to the lateral members and/or the lateral arms. Pulleys may route cables through the lateral members and the lateral arms. The pulley may also reverse the direction of the pulling force. For example, the routing of the first cable and the second cable around the pulleys may operate to loosen and tighten the HMD, respectively, depending on the cable being pulled. In some cases, the torsion spring may be used to retract or wind any excess slack in the first cable and/or the second cable. Reducing the amount of slack may increase the responsiveness of the HMD.

In addition to including lateral members and lateral arms, the HMD may also include a top member disposed overhead between the front and rear of the HMD. The top member may include a wiring mechanism similar to the lateral members and arms that enables adjustment of the vertical position of the HMD on the user. For example, the top member may include a first cable wound around a first spool and a second cable wound around a second spool. Pulling on the first cable may lower the vertical position of the display (e.g., the HMD is lowered vertically on the user) and pulling on the second cable may raise the vertical position of the display (e.g., the HMD is raised vertically on the user). In such cases, the first cable may be wound around the first spool to lower the HMD, while the second cable may be unwound from the second spool to provide slack. Conversely, the second cable may be wound around the second spool to raise the HMD, while the first cable may be unwound from the first spool to provide slack. The top member and the arm may include pulleys for routing one or more cables in corresponding directions and/or pulling the first cable and the second cable of the top member.

The HMD may include a plurality of actuators for respectively tightening and loosening the HMD, and adjusting the vertical position of the HMD. For example, the HMD may include a first actuator for adjusting a vertical position of the HMD via the top member and the arm. Additionally, the HMD may include a second actuator for tightening and loosening the HMD to the user via the lateral members and the arms. As such, the HMD may include one actuator for adjusting the tightness (e.g., the distance between the front and rear) of the HMD and another actuator for adjusting the vertical fit of the HMD. That is, one or more lateral members may be used to tighten and/or loosen the HMD for a user, while one or more top members may be used to vertically position the HMD on the user. However, in some cases, a single actuator may be used to actuate the top member, the lateral member, and the arm, respectively.

In some cases, the HMD may not include a wiring mechanism, but may include straps, ties, or other members engaged with the actuator. As similarly discussed above, the members may traverse along the sides of the head and/or over the top of the head. However, the member may include teeth, connectors, slits, tabs, notches, and/or other slots extending along a portion of the length of the member and engaged with the actuator. These actuators may include complementary mechanisms configured to engage the slot at different portions, for example, along the length of the member. For example, the actuator may include a dial, lever, wheel, slider, buckle, arm, and/or knob having a gear engaged with the slot. In some cases, this engagement between the member and the actuator may be similar to a ratchet mechanism, a sliding and locking mechanism, a friction mechanism, or the like.

For example, the first lateral member may have a slot extending longitudinally along a portion of its length. Similarly, the second lateral member may have a slot extending longitudinally along a portion of its length. At the rear of the rear housing, for example, the actuator may have one or more gears that engage with slots of the first and second lateral members. Actuation of the actuator in a first direction may cause the first and second lateral members to extend from the rear housing to loosen the HMD. Alternatively, actuating the actuator in the second direction may cause the first and second lateral members to retract into the rear housing to tighten the HMD. In addition, a top member having a slot extending along a portion of its length may be engaged with the gear to extend or retract in length. Such extension or retraction may cause the HMD to lower or raise its vertical position on the user, respectively.

The HMD may include one or more speakers for outputting sound to a user. In some cases, the speakers may be mounted to or integrated in a lateral member of the HMD. For example, the first lateral member may include a first speaker for outputting sound to the left ear of the user, and the second lateral member may include a second speaker for outputting sound to the right ear of the user. The speaker may include means for being repositioned and/or changing the orientation or proximity of the speaker relative to the user. For example, a first speaker may be coupled to a first lateral member via one or more ball joints (e.g., a ball and socket), and a second speaker may be coupled to a second lateral member via one or more additional ball joints. The ball joint may provide varying degrees of movement about one or more axes. In addition, the first speaker and/or the second speaker may be coupled to or mounted on an extendable and retractable slider. While the ball joint provides rotational movement, the slide may provide translational or longitudinal movement to extend or retract the speaker.

In some cases, the HMD may include one or more wire routing portions or components that guide wires, optical fibers, or other cables between the front and rear of the HMD. For example, the rear housing may house a wireless transceiver, battery, microphone, input/output device, processor, module, and/or other components to allow operation of the HMD. In some cases, the front portion may include a display, an antenna, a microphone, an input/output device, a processor, a module, and the like. One or more cables communicatively couple the front and rear to provide power, information signals, or images to be output on a display. In some cases, wires, optical fibers, and/or cables may be routed through the one or more wire routing portions to alleviate potential problems of entanglement of the wires and/or impairment of the aesthetic appearance of the HMD. In some cases, the wire routing portion may be integrally formed within one or more top members and/or one or more lateral members.

Additionally or alternatively, in some cases, the HMD may include a Flexible Printed Circuit (FPC) that extends from a front to a back of the HMD to communicatively couple components of the HMD. In some cases, the FPC may include a service loop or slack that allows the FPC to extend and retract. In some cases, the service circuit may be disposed inside the jacket.

The present disclosure provides a thorough understanding of the principles of structure, function, manufacture, and use of the systems and methods disclosed herein. One or more examples of the present disclosure are illustrated in the accompanying drawings. Those of ordinary skill in the art will understand that the systems and methods specifically described herein and illustrated in the accompanying drawings are non-limiting embodiments. The features illustrated or described in connection with one embodiment may be combined with the features of other embodiments, including features between systems and methods. Such modifications and variations are intended to be included within the scope of the appended claims.

Fig. 1 shows a front isometric view of an exemplary HMD 100. As shown in fig. 1, the HMD 100 may include a top member 102 extending from a front 104 of the HMD 100 toward a rear 106 of the HMD 100. The first end of the top member 102 is shown coupled (e.g., via a hinge) to a display housing 108 (which may contain one or more displays) of the HMD 100. Thus, the top member 102 may be configured to pivot relative to the display housing 108 to conform the display housing 108 to the face of the user. In some cases, in addition to including one or more displays, the display housing 108 may include batteries, sensors, adjustment mechanisms, buttons, interfaces, controllers, modules, etc., thus performing the operations of the HMD 100. The second end of the top member 102 may extend into or through the collet 110. As discussed herein, within the collet 110, the top member 102 may be engaged with one or more arms and/or wiring mechanisms. These arms and wiring mechanisms may be implemented to increase or decrease the length of the top member 102 exposed outside of the collet 110. For example, the wiring mechanism of the top member 102 may be engaged with a first actuator 112 for adjusting the vertical position of the HMD 100 on the user. The cabling of the cabling mechanism may be wound or unwound upon actuation of the first actuator 112 to extend and retract the top member 102 from the collet 110 in various lengths.

Adjustment of the top member 102 may enable adjustment of the vertical position of the display housing 108 on the user. For example, retracting the top member 102 (or arm) into the collet 110 may reduce the exposed length of the top member 102 to raise the display housing 108 relative to the user's face. Extending the top member 102 may increase the exposed length of the top member 102 to lower the display housing 108 relative to the user's face. In this sense, the first actuator 112 may be used to adjust the vertical position of the display housing 108 on the user.

In some cases, the top member 102 may include a flexible material (e.g., rubber, plastic, etc.) that is configured to curve, bend, and/or otherwise conform to the head of the user. The fabric covered foam pad may be coupled to the top member 102 and/or the collet 110 and may include a rubber knob that allows for easy installation and removal (e.g., for cleaning or replacement) at the top member 102. In such cases, the rubber knob may be pressed into a hole in the collet 110.

HMD 100 also includes one or more lateral members, such as a first lateral member 114 and a second lateral member 116. The first and second lateral members 114, 116 may extend between the front 104 and the rear 106 along opposite sides of the HMD 100. The first and second lateral members 114, 116 are shown coupled to opposite sides (e.g., left and right) of the display housing 108. In some cases, the first and second lateral members 114, 116 may be pivotably coupled to the display housing 108 to allow the display housing 108 to pivot and conform to a user.

One or more arms may extend from the rear 106 of the HMD 100 to engage with the first and second lateral members 114, 116, respectively. For example, a first lateral arm 118 may extend to engage with the first lateral member 114 and a second lateral arm 120 may extend to engage with the second lateral member 116. As discussed herein, the first and second lateral arms 118, 120 may be components of a rear strap 122 of the HMD 100.

The first lateral arm 118 may be engaged with the first lateral member 114 to extend or retract the first lateral member 114 toward or away from the rear portion 106. Similarly, the second lateral arm 120 may engage with the second lateral member 116 to extend or retract the second lateral member 116 toward or away from the rear portion 106. As discussed herein, the HMD 100 may include an actuator operably engaged with a wiring mechanism for extending and retracting the first lateral member 114 and the second lateral member 116. For example, actuation of the actuator in a first direction may cause the first and second lateral members 114, 116 to extend from the first and second lateral arms 118, 120, respectively. This movement may increase the exposed length of the first and second lateral arms 118, 120 to loosen the HMD 100. Alternatively, actuation of the actuator in the second direction may cause the first and second lateral members 114, 116 to retract toward the first and second lateral arms 118, 120, respectively. This movement may reduce the exposed length of the first and second lateral arms 118, 120, thereby tightening the HMD 100.

HMD 100 also includes a rear strap 122 engaged with the rear of the head. In some cases, rear strap 122 may include slits or features that allow rear strap 122 to flex or conform to the head (e.g., above and below the occiput of the user). The rear strap 122 may additionally or alternatively be spring loaded (e.g., leaf springs) to apply pressure to the rear of the head.

Fig. 2 shows a rear isometric view of HMD 100. The rear portion 106 of the HMD 100 is shown to include a rear housing 200. The rear housing 200 may house various components of the HMD 100, such as a battery, an antenna, a processor, a Printed Circuit Board (PCB), and the like. In addition, the rear housing 200 is shown to include a first actuator 112 and a second actuator 202. As shown, and in some cases, the first actuator 112 may be disposed vertically above the second actuator 202.

Within the rear housing 200, accordingly, the first actuator 112 may be engaged with the wiring mechanism of the top member 102 and the second actuator 202 may be engaged with the wiring mechanism of the first and/or second lateral members 114, 116. As described above, the first actuator 112 and the top member 102 may be used to adjust the HMD 100 vertically on or relative to the user's eyes, while the second actuator 202 may be used to tighten and loosen the HMD 100. Additionally, the rear strap 122 may include first and second lateral arms 118, 120 that engage with or within the first and second lateral members 114, 116, respectively. In some cases, the first and second lateral members 114, 116 may slide over the first and second lateral arms 118, 120, respectively.

HMD 100 may include various tubes for routing or guiding cabling of a routing mechanism. For example, the first tube 204 and the second tube 206 are shown routed from the rear housing 200 to the second lateral member 116. The first tube 204 and the second tube 206 may guide respective cables for extending and retracting the second lateral member 116 from the second lateral arm 120. Although not shown in fig. 2, a tube may be similarly connected to the first lateral member 114 for guiding cables for extending and retracting the first lateral member 114 from the first lateral arm 118.

Similarly, the third tube 208 and the fourth tube 210 are shown routed from the rear housing 200 to the jacket 110. The third tube 208 and the fourth tube 210 may guide cables for extending and retracting the top member 102 from the collet 110, respectively. These cables may be engaged with the top member 102, collet 110, and/or top arm 212. In some cases, the top arm 212 may be coupled to or engage the collet 110. Here, similar to the first and second lateral arms 118, 120, the rear strap 122 may include a top arm 212 that extends into the collet 110. The top arm 212 may be similarly engaged with the top member 102, as discussed above with respect to the first lateral member 114 and the first lateral arm 118, for example, to extend and retract at different lengths.

Fig. 3 shows a top view of HMD 100 showing top member 102 extending from front 104 toward back 106 and into jacket 110. Similarly, the first and second lateral members 114, 116 may extend around lateral sides of the HMD 100 to engage with the first and second lateral arms 118, 120, respectively. Rear strap 122 is shown extending from rear portion 106 to engage the head of a user. In some cases, rear housing 200 may be coupled to rear strap 122. In addition, third tube 208 and fourth tube 210 are shown routed between rear housing 200 and jacket 110 for guiding cables that adjust the vertical position of display housing 108 on the user.

Fig. 4 shows a rear view of the HMD 100. The first tube 204 and the second tube 206 are shown extending from the second lateral member 116, from the right hand side of the HMD 100, and into the rear housing 200 toward the rear 106. Similarly, the fifth and sixth tubes 300, 302 are shown extending into the rear housing from the first lateral member 114, from the left-hand side of the HMD 100, and toward the rear 106. The fifth tube 300 and the sixth tube 302 may respectively house cables for extending and retracting the first lateral member 114. The first and second lateral arms 118, 120 are further shown as extending around the sides of the HMD 100 and into the first and second lateral members 114, 116, respectively.

Further, third tube 208 and fourth tube 210 are shown extending from jacket 110, from the top of HMD 100, toward rear 106, and into rear housing 200. The top arm 212 is also shown extending into the collet 110 for engagement with a wiring mechanism to increase or decrease the length of the top member 102 exposed outside the collet 110.

In some cases, the first and second lateral members 114, 116 may extend and retract in unison via actuation of the second actuator 202. Additionally, the engagement between the first lateral member 114 and the first lateral arm 118 and the second lateral member 116 and the second lateral arm 120 may couple the front 104 and the rear 106 of the HMD 100.

Fig. 5A and 5B show a first side view and a second side view, respectively, of the HMD 100. As shown in fig. 5A, a fifth tube 300 and a sixth tube 302 extend from the first lateral member 114 to the rear housing 200. The cables within the fifth tube 300 and the sixth tube 302 may be engaged with the second actuator 202. In fig. 5B, the first tube 204 and the second tube 206 extend from the second lateral member 116 to the rear housing 200. The cables within the first tube 204 and the second tube 206 may be engaged with the second actuator 202. Depending on the actuation direction of the second actuator 202, the first lateral member 114 may extend from or retract over the first lateral arm 118, and the second lateral member 116 may extend from or retract over the second lateral arm 120.

Similarly, a third tube 208 and a fourth tube 210 extend from the jacket 110 to the rear housing 200. The cables within the third tube 208 and the fourth tube 210 may be engaged with the first actuator 112. The top member 102 may extend or retract from the collet 110 at different lengths depending on the actuation direction of the first actuator 112.

The rear strap 122 may extend from the rear housing 200 to hold the rear of the head when the HMD 100 is worn. In some cases, the rear strap 122 may include a pad placed on top of the user's head. The rear strap 122 may also be spring loaded or tensioned to conform to different head ergonomics.

Fig. 6A and 6B show side views of the HMD 100 showing the second lateral member 116 in a fully retracted state and a fully extended state, respectively. In fig. 6A and 6B, the second lateral member 116 is shown transparent to illustrate engagement with the second lateral arm 120. Although the discussion herein refers to the second lateral member 116, it should be understood that the first lateral member 114 and the first lateral arm 118 may operate in a similar manner.

Beginning with fig. 6A, the second lateral member 116 is shown fully retracted above the second lateral arm 120. Tightening the HMD 100 via the second actuator 202 may cause the exposed length of the second lateral arm 120 to decrease. The second lateral member 116 can slide over the second lateral arm 120, or alternatively, the second lateral arm 120 can be received within the second lateral member 116. In such cases, the second lateral member 116 and the second lateral arm 120 may be in a sliding relationship. However, in some cases, the second lateral member 116 and the second lateral arm 120 may slide alongside each other, slide within each other, etc. For example, the second lateral arm 120 may be configured to slide within the second lateral member 116 via a rail system or mechanism of the second lateral member 116 and/or the second lateral arm 120 that engages to allow sliding movement.

To position or receive the second lateral arm 120, the second lateral member 116 may include a tab or other channel. For example, as shown, the second lateral member 116 may include a plurality of channels 600 in which the second lateral arms 120 are configured to slide. The channel 600 may represent a U-shaped channel shaped to receive a side, end, or edge of the second lateral arm 120. As shown, the second lateral member 116 can include one or more channels 600 disposed at the top and/or bottom of the second lateral member 116. In some cases, the channel 600 may be used to align the second lateral arm 120 within the second lateral member 116.

In fig. 6B, the second lateral member 116 is shown fully extended from the second lateral arm 120. Extending the second lateral member 116 exposes a greater length of the second lateral arm 120. That is, loosening the HMD 100 may cause the exposed length of the second lateral arm 120 to increase. In some cases, the second lateral member 116 may be configured to extend between 0 millimeters (mm) and 65mm relative to the second lateral arm 120.

The first tube 204 and the second tube 206 are also shown routing cables within the second lateral member 116 and/or along the second lateral arm 120.

Fig. 7A and 7B illustrate the first actuator 112. Although the discussion herein refers to the first actuator 112 and describes components of the first actuator 112, it should be understood that the second actuator 202 may include similar components.

The first actuator 112 includes a knob 700 that can be grasped and actuated by a user. For example, knob 700 may include ridges or grooves for grasping and rotating by a user. The first actuator 112 also includes a spool for engaging the cabling of the cabling mechanism. For example, the first actuator 112 may include an extension spool 702 and a retraction spool 704. The extension spool 702 and the retraction spool 704 may represent spools for stowing cables of the routing mechanism associated with adjusting the vertical position of the display housing 108. In some examples, the extension spool 702 may include a spool for receiving a first cable corresponding to the extension cable. The retraction reel 704 may include a second spool for receiving a second cable corresponding to the retraction cable. The extension spool 702 and the retraction spool 704 may be coupled to the knob 700 such that during rotation of the knob 700, the extension spool 702 and the retraction spool 704 rotate.

When the first actuator 112 is actuated, the cable around the extension spool 702 and the retraction spool 704 may be wound and unwound depending on the direction of actuation. For example, where the first actuator 112 is actuated to lower the display housing 108 (e.g., clockwise), the first cable is retracted by the extension spool 702. As discussed herein, pulleys within the top member 102, collet 110, and/or around the top arm 212 may create a pulling motion to lower the display housing 108. At the same time, retracting the spool 704 may introduce slack into the second cable to allow the first cable to be retracted by the extension spool 702.

To allow this operation, the first cable and the second cable may be wound around the extension spool 702 and the retraction spool 704 in opposite directions. For example, a first cable may be wound around the extension spool 702 in a first direction (e.g., clockwise) and a second cable may be wound around the retraction spool 704 in a second direction. Thus, during stowage of the first cable, the second cable may be deployed to allow the display housing 108 to be lowered. Conversely, with the first actuator 112 actuated to raise the display housing 108 (e.g., counterclockwise), the second cable is retracted by the retraction reel 704. At the same time, the extension spool 702 may introduce slack into the first cable to allow the second cable to be retracted by the retraction spool 704 (assuming different winding directions of the first and second cables). Thus, during stowage of the second cable, the first cable may be deployed to allow the display housing 108 to be raised.

Knob 700 is also shown to include a ratchet mechanism including a first ratchet arm 706 (1) and a second ratchet arm 706 (2). The first ratchet arm 706 (1) and the second ratchet arm 706 (2) may be disposed at the lower side of the knob 700. In some cases, each of the first ratchet arm 706 (1) and the second ratchet arm 706 (2) may include two arms that extend radially outward. In addition, the first ratchet arm 706 (1) and the second ratchet arm 706 (2) may be diametrically opposed to each other. The first ratchet arm 706 (1) and the second ratchet arm 706 (2) may include arms (e.g., teeth) that engage with teeth of the rear housing 200. That is, once the first actuator 112 is coupled to the rear housing 200, the first ratchet arm 706 (1) and the second ratchet arm 706 (2) may mate with the teeth of the rear housing 200. Such engagement may provide a ratchet-like operation to allow a user to rotate the first actuator 112. In addition, the engagement of the first and second ratchet arms 706 (1, 706 (2) with the teeth of the rear housing 200 may prevent backdriving of the first actuator 112.

Fig. 8 illustrates the engagement of the first actuator 112 and the second actuator 202 with the rear housing 200. As shown above in fig. 7A and 7B, the second actuator 202 may have similar components to the first actuator 112, such as an extension spool 800 and a retraction spool 802 for winding/unwinding a cable. In fig. 8, the first actuator 112 is shown disposed away from the rear housing 200, while the second actuator 202 is shown residing within the rear housing 200.

The rear housing 200 includes a cavity, pocket, or receptacle for receiving the first actuator 112 and the second actuator 202. For example, the first actuator 112 may reside within a first socket 804 and the second actuator 202 is shown residing within a second socket 806. When coupled to the rear housing 200, the extension and retraction spools may reside within the first and second sockets 804, 806, respectively.

Adjacent to the openings of the first socket 804 and the second socket 806, the rear housing 200 may include ratchet teeth 808. Ratchet teeth 808 may be disposed in a circular fashion around the openings to first socket 804 and second socket 806. The ratchet teeth 808 may be complementary to engage with the first ratchet arm 706 (1) and the second ratchet arm 706 (2) of the first actuator 112. The first and second ratchet arms of the second actuator 202 may similarly engage ratchet teeth disposed about the second socket 806.

Fig. 9 shows a transparent view of HMD 100 showing rear strap 122 engaged with rear housing 200. As shown, the top arm 212 may be pivotably coupled to the rear housing 200 via a ball joint 900. In some examples, the ball portion of ball joint 900 may extend from, or be a component of, top arm 212. The socket portion of ball joint 900 may be a component of rear housing 200. The coupling of the ball portion within the socket portion may form a ball joint 900. The coupling of top arm 212 to rear housing 200 via ball joint 900 may help conform rear strap 122 to the head of a user. For example, ball joint 900 may pivot rear strap 122 in certain directions and/or axes to securely fix HMD 100 to a user.

Fig. 10A and 10B show transparent views of the cables routed around the spools of the first actuator 112 and the second actuator 202, respectively.

Beginning with fig. 10A, an extension spool 702 and a retraction spool 704 are shown residing within first socket 804. The first cable 1000 is shown wound, coiled, or wrapped around an extension spool 702. The first cable 1000 may correspond to an extension cable such that when the first cable 1000 is pulled, the display housing 108 may be lowered on the face of the user. In other words, the first cable 1000 may be pulled to loosen the fit of the HMD 100. In some cases, the first cable 1000 may be wound around the extension spool 702 in a first direction (such as clockwise).

The second cable 1002 is shown wound, coiled, or wrapped around the retraction reel 704. The second cable 1002 may correspond to a retract cable such that when the second cable 1002 is pulled, the display housing 108 may rise over the face of the user. In other words, the second cable 1002 may be pulled to tighten the fit of the HMD 100. In some cases, the second cable 1002 may be wound around the retraction reel 704 in a second direction (such as counterclockwise).

Wrap spring 1004 is shown operably coupling extension spool 702 and retraction spool 704. As shown, wrap spring 1004 may engage extension spool 702 and retraction spool 704 at a location between first cable 1000 and second cable 1002. In some cases, wrap spring 1004 may be coupled to extension spool 702 and/or retraction spool 704. Wrap spring 1004 may lock during actuation of first actuator 112 to lower display housing 108. For example, rotation of the knob 700 in a first direction associated with raising the display housing 108 may cause the wrap spring 1004 to tighten around the retraction reel 704 and pull on the second cable 1002. When rotated in the opposite direction, wrap spring 1004 may not engage retraction reel 704 but may lower display housing 108 via first cable 1000. Depending on the direction of rotation, the spring and/or pulley may retract slack.

The first actuator 112, the extension spool 702, and/or the retraction spool 704 may also include a tab, protrusion, ring, or other feature for physically separating the first cable 1000, the second cable 1002, and the wrap spring 1004. These features may prevent the first cable 1000, the second cable 1002, and the wrap spring 1004 from tangling together. Additionally, these features may help guide the first cable 1000 and/or the second cable 1002 during winding and unwinding. A viscous clutch 1006 may also be included to overcome slip torque and prevent the retraction reel 704 from rotating with the extension reel 702.

Moving to fig. 10B, the third cable 1008 and the fourth cable 1010 are shown wrapped around the extension spool 800 of the second actuator 202. The third and fourth cables 1008, 1010 may correspond to extension cables that, when pulled, cause the HMD 100 to be released from the user. In other words, the third cable 1008 and the fourth cable 1010 may be pulled to loosen the fit of the HMD 100. In some cases, the third cable 1008 and the fourth cable 1010 may be wound around the extension spool 800 in a first direction (such as clockwise).

Since the second actuator 202 may consistently or simultaneously loosen the sides of the HMD 100, the extension spool 800 may be operably coupled to a cable (e.g., the third cable 1008) for loosening the first lateral member 114 and a cable (e.g., the fourth cable 1010) for loosening the second lateral member 116. As shown, the third and fourth cables 1008, 1010 may be separated by a divider for routing to the first and second lateral members 114, 116, respectively.

Fifth cable 1014 and sixth cable 1016 are shown wrapped around retraction spool 802 of second actuator 202. The fifth cable 1014 and the sixth cable 1016 may correspond to shrink cables that, when pulled, cause the HMD 100 to tighten from a user. In other words, the fifth cable 1014 and the sixth cable 1016 may be pulled to tighten the fit of the HMD 100. In some cases, the fifth cable 1014 and the sixth cable 1016 may be wound around the retraction reel 802 in a second direction (such as counterclockwise).

Since the second actuator 202 may tighten the sides of the HMD 100 in unison or simultaneously, the retraction spool 802 may be operably coupled to a cable (e.g., fifth cable 1014) for tightening the first lateral member 114 and a cable (e.g., sixth cable 1016) for tightening the second lateral member 116. As shown, the fifth cable 1014 and the sixth cable 1016 may be separated by a divider for routing to the first lateral member 114 and the second lateral member 116, respectively.

Wrap spring 1020 is shown operably coupling extension spool 800 and retraction spool 802. As shown, wrap spring 1020 may engage extension spool 800 and retraction spool 802 at a location between third cable 1008/fourth cable 1010 and fifth cable 1014/sixth cable 1016. In some cases, wrap spring 1020 may be coupled to extension spool 800 and/or retraction spool 802. The wrap spring 1020 may lock during actuation of the second actuator 202 to tighten the HMD 100 to a user. For example, during rotation of the second actuator 202 in a direction associated with tightening the HMD 100, the wrap spring 1020 may tighten around the retraction spool 802 and pull on the fifth cable 1014 and the sixth cable 1016. When rotated in the opposite direction, the wrap spring 1020 may not engage the retraction spool 802 but may unwind the HMD 100 via the third and fourth cables 1008, 1010. Depending on the direction of rotation, the spring and/or pulley may retract slack. A viscous clutch 1022 may also be included to overcome slip torque and prevent the retraction reel 704 from rotating with the extension reel 702.

In some cases, the diameter ratio of the extension spool 702 (or extension spool 800) and the retraction spool 704 (or retraction spool 802) may be configured or designed to match the force ratio, otherwise the first cable 1000 (or third cable 1008 and fourth 1010) and second cable 1002 (or fifth 1014 and sixth 1016) may not be wound at the same rate. This may result in slack being introduced into either the first cable 1000 or the second cable 1002. In some cases, HMD 100 may have equal force ratios (2:1 and 2:1) for first cable 1000 (2:1) and second cable 1002 (2:1) to allow the diameters of extension spool 702 and retraction spool 704 to be the same size (1:1). If there is a difference in force ratios (1:1 and 2:1), the extension spool 702 and the retraction spool 704 also need to have a ratio of 2:1 with respect to their diameters.

Fig. 10C shows a simplified view of the first actuator 112, wrap spring 1004, extension spool 702, and retraction spool 704. As shown, wrap spring 1004 may wrap around extension spool 702 and retraction spool 704. The first cable 1000 may represent an extension cable coupled to the extension spool 702. In this way, as the extension spool 702 rotates, the extension spool 702 may retract the first cable 1000 to lower the display housing 108. The second cable 1002 may represent a retraction cable coupled to the retraction reel 704. As the retraction reel 704 rotates, the retraction reel 704 may retract the second cable 1002 to raise the display housing 108.

The first actuator 112 is also shown to include a shaft 1024. The shaft 1024 and the extension spool 702 can be keyed together via an accessory 1026 (e.g., a keyway, etc.). The accessory 1026 may transfer rotational movement of the shaft 1024 to the extension spool 702.

During lowering of the display housing 108, the extension spool 702 takes up slack in the second cable 1002 and the retraction spool 704 is free to freewheel (e.g., free to rotate). When all slack in the second cable 1002 is taken up, the top member 102 can begin to undergo relative movement that begins to pull the second cable 1002 out of the retraction reel 704. This is the way the slack is removed.

Instead, during the raising of the display housing 108, the extension spool 702 and the retraction spool 704 are coupled directly together by the wrap spring 1004. This means that the retraction reel 704 winds the second cable 1002 until the cable reaches a hard stop in the top member 102. In either case, the retraction reel 704 continues to wind the second cable 1002. The extension spool 702 simultaneously unwinds the first cable 1000.

The second actuator 202 may similarly wind and unwind the cables of the first and second lateral members 114, 116 to tighten and loosen the HMD 100.

Fig. 11 illustrates routing of cables within the top member 102, jacket 110, and/or inner jacket (shown in fig. 12). As shown, one or more cables (such as a first cable 1000 and a second cable 1002) may be used to adjust the HMD 100.

The first cable 1000 may be routed through the jacket 110 around one or more pulleys, such as the first pulley 1100, the second pulley 1102, and the third pulley 1104. As shown, a first cable 1000 may enter the collet 110, wrap around the first pulley 1100, wrap around the second pulley 1102, and then wrap around the third pulley 1104. In some cases, the first pulley 1100 may be coupled to the collet 110, while the second pulley 1102 and the third pulley 1104 may be coupled to the inner collet. In some cases, and as discussed herein, the first cable 1000 may be coupled or anchored to the top member 102 and/or the inner jacket at a first location 1106. The opposite end of the first cable 1000 may be operably coupled to the first actuator 112 (or another actuator) and/or a spool engaged with the first actuator 112. For example, the first cable 1000 may be engaged with an extension spool 702 operatively coupled to the first actuator 112.

In some cases, the first cable 1000 may correspond to a cable that when pulled causes the top member 102 to extend. Further, the display housing 108 may be lowered vertically on the user. In such cases, the first cable 1000 may be wound around the extension spool 702 as the first cable 1000 is pulled. For example, assuming the routing of the first cable 1000, pulling on the first cable 1000 may cause the top member 102 (and/or inner jacket) to extend further outward from the jacket 110. At the same time, the second cable 1002 may unwind to provide slack to the first cable 1000 and allow the first cable 1000 to be pulled for extending the top member 102 from the collet 110.

The second cable 1002 may be routed through the jacket 110 around one or more pulleys, such as the fourth pulley 1108 and/or the fifth pulley 1110. In some cases, the fourth pulley 1108 and/or the fifth pulley 1110 may be coupled to an inner jacket. Additionally, the second cable 1002 may be anchored to the top member 102 at a second location 1112. The opposite end of the second cable 1002 may be operably coupled to the first actuator 112 (or another actuator) and/or the retraction reel 704 engaged with the first actuator 112.

In some cases, the second cable 1002 may correspond to a retraction cable that when pulled causes the top member 102 to retract into the collet 110. Further, the display housing 108 may be raised vertically on the user. In such cases, when the second cable 1002 is pulled, the second cable 1002 may be wound around the retraction reel 704. Given the routing of the second cable 1002, for example, pulling on the second cable 1002 may cause the top member 102 and/or inner jacket to retract into the jacket 110. Additionally, to provide for pulling (e.g., slackening) of the second cable 1002, the first cable 1000 may be unwound from the extension spool 702 to allow the second cable 1002 to be wound around the retraction spool 704.

The first cable 1000 and the second cable 1002 may be routed to the jacket 110 within the third tube 208 and the fourth tube 210, respectively. That is, the first cable 1000 may be disposed within the third tube 208 disposed between the jacket 110 and the rear housing 200. The second cable 1002 may be disposed within the fourth tube 210 disposed between the jacket 110 and the rear housing 200.

Fig. 12 shows an additional view of a first cable 1000 and a second cable 1002 routed within the jacket 110. As discussed above, the top member 102 is shown extending from the collet 110. Further, the top member 102 may be operably coupled to the inner jacket 1200. In some cases, the top member 102 may extend from and retract into the collet 110. In some cases, HMD 100 may additionally include top arm 212 and top arm 212 may reside within a portion of collet 110.

The first cable 1000 is shown routed around pulleys such as the first pulley 1100, the second pulley 1102, and/or the third pulley 1104. In some cases, the first pulley 1100, the second pulley 1102, and/or the third pulley 1104 may be coupled to the top member 102, the collet 110, and/or the inner collet 1200. For example, a first pulley 1100 may be coupled to collet 110, while a second pulley 1102 and a third pulley 1104 may be coupled to inner collet 1200. In so doing, the first cable 1000 may be routed within the jacket 110 around the first pulley 1100, around the second pulley 1102, and then around the third pulley 1104. In addition, the first cable 1000 is shown anchored to the top member 102, for example, at a first location 1106. The opposite end of the first cable 1000 may be operably coupled to the first actuator 112 via an extension spool 702.

The second cable 1002 is shown routed around pulleys such as the fourth pulley 1108 and the fifth pulley 1110. Fourth pulley 1108 and/or fifth pulley 1110 may be coupled to inner jacket 1200. As shown, the second cable 1002 may be routed within the jacket 110 around the fourth pulley 1108 and then around the fifth pulley 1110. Additionally, in some cases, the second cable 1002 may be anchored to the top member 102 at the second location 1112. An opposite end of the second cable 1002 may be operably coupled to the first actuator 112 via the retraction spool 704.

Wiring of the first cable 1000 and the second cable 1002 within the top member 102, the collet 110, and/or the inner collet 1200, and around pulleys, may enable vertical adjustment of the HMD 100 on the user. That is, the first cable 1000 and the second cable 1002 may be pulled to vertically lower and raise the HMD 100, respectively. In some cases, the first pulley 1100, the second pulley 1102, the third pulley 1104, the fourth pulley 1108, and/or the fifth pulley 1110 may be idler pulleys for guiding and tensioning the first cable 1000 and/or the second cable 1002, respectively.

Fig. 13 shows the routing of cables within the second lateral member 116, showing a fourth cable 1010 and a sixth cable 1016. In some cases, the fourth cable 1010 may be wrapped around the first pulley 1300 and the second pulley 1302. In some cases, the first pulley 1300 may be coupled to (e.g., mounted to) the second lateral arm 120. The second pulley 1302 may be coupled to (e.g., mounted to) the second lateral member 116. The fourth cable 1010 may enter the second lateral member 116, wrap around the first pulley 1300, wrap around the second pulley 1302, and then be coupled (e.g., secured) to the second lateral member 120. That is, one end of the fourth cable 1010 may be coupled to the second actuator 202 (or a component thereof, such as the extension spool 800). An opposite second end of the fourth cable 1010 may be coupled to the second lateral member 120.

A sixth cable 1016 may enter the second lateral member 116 and wrap around the third pulley 1304 and the fourth pulley 1306. Third pulley 1304 and/or fourth pulley 1306 may be coupled to second lateral arm 120. In some cases, the third pulley 1304 may represent an arm of a torsion spring within the second lateral member 116 (as discussed herein). That is, the third pulley 1304 may be omitted and, alternatively, the sixth cable 1016 may wrap around an arm or other protrusion of the torsion spring. A first end of the sixth cable 1016 may be coupled to the second actuator 202 (or a component thereof, such as the retraction spool 802), while an opposite second end may be coupled to the second lateral member 120.

In some cases, the operation of the fourth and sixth cables 1010, 1016 may be similar to the mechanism used to extend the second lateral member 116 to various extensions. During actuation of the second actuator 202, wiring of the fourth and sixth cables 1010, 1016 may cause the HMD 100 to tighten and/or loosen from a user. For example, assuming the routing of the fourth cable 1010 around the first and second pulleys 1300, 1302, pulling on the fourth cable 1010 may cause the second lateral member 116 to extend (or otherwise cause the distance HMD 100 between the front 104 and the rear 106 to increase). This may loosen the HMD 100 from the user. At the same time, the sixth cable 1016 may provide slack for the second lateral member 116 to extend. For example, if the second actuator 202 is actuated to loosen the HMD 100, the sixth cable 1016 may provide slack for the fourth cable 1010 to be pulled to extend the second lateral member 116. That is, pulling on the fourth cable 1010 may cause the fourth cable 1010 to wrap around the extension spool 800 and the sixth cable 1016 to unwind from the retraction spool 802.

Alternatively, when the second actuator 202 is actuated to tighten the HMD 100, the sixth cable 1016 may be pulled to cause the second lateral member 116 to retract. That is, routing of the sixth cable 1016 around the third pulley 1304 and the fourth pulley 1306 may cause the second lateral member 116 to retract, thereby reducing the distance between the front 104 and the rear 106 of the HMD 100. Here, pulling on the sixth cable 1016 winds the sixth cable 1016 around the retraction spool 802 and unwinds the fourth cable 1010 from the extension spool 800.

The second lateral member 116 can be at least partially disposed over the second lateral arm 120. Tightening the HMD 100 may retract the second lateral arm 120 into the second lateral member 116, or retract the second lateral member 116 over the second lateral arm 120. Releasing the HMD 100 may extend the second lateral arm 120 from the second lateral member 116, or extend the second lateral member 116 from the second lateral arm 120.

Fourth cable 1010 and sixth cable 1016 may be routed within first tube 204 and second tube 206, respectively, to second lateral member 116. That is, the fourth cable 1010 may be disposed within the first tube 204 between the second lateral member 116 and the rear housing 200. A sixth cable 1016 may be disposed within the second tube 206 between the second lateral member 116 and the rear housing 200.

The second lateral member 116 is also shown to include an end 1308 for pivotally coupling to the display housing 108. The ends 1308 may be coupled via fasteners, snap-fits, compression-fits, or the like.

Although fig. 13 shows the second lateral member 116 and the second lateral arm 120, the first lateral member 114 may include similar features for receiving the first lateral arm 118, and the first lateral member 114 may similarly extend from and retract over the first lateral arm 118.

Fig. 14 shows an additional view of the fourth 1010 and sixth 1016 cables routed within the second side member 116 and the second side arm 120. As discussed above, the second lateral member 116 may be disposed above the second lateral arm 120 such that the second lateral member 116 may extend from the second lateral arm 120 in various lengths. Thus, in some cases, the second lateral member 116 may extend from and retract into the second lateral arm 120.

The fourth cable 1010 is shown routed around pulleys such as the first pulley 1300 and the second pulley 1302. In some cases, the first pulley 1300 may be coupled to the second lateral arm 120. The second pulley 1302 may be coupled to the second lateral member 116. Additionally, the fourth cable 1010 may be anchored to the second lateral arm 120 at the first position 1400. The opposite end of the fourth cable 1010 may be operably coupled to the second actuator 202 via the extension spool 800.

The sixth cable 1016 is shown routed around the third pulley 1304 and the fourth pulley 1306. The third pulley 1304 may be coupled to the second lateral member 116 and the fourth pulley 1306 may be coupled to the second lateral arm 120. The sixth cable 1016 may be anchored to the second lateral arm 120 at the second position 1402. The opposite end of the sixth cable 1016 may be operably coupled to the second actuator 202 via the retraction spool 802. In some cases, the sixth cable 1016 may not rotate about the third pulley 1304, but rather about the hook of the torsion spring, as discussed herein.

Wiring of the fourth and sixth cables 1010, 1016 within the second lateral member 116 and around the pulleys may enable loosening and tightening of the HMD 100 on the user. That is, the fourth cable 1010 and the sixth cable 1016 may be pulled to loosen and tighten the HMD 100, respectively.

Fig. 15A and 15B illustrate various views of the second lateral member 116 and the sixth cable 1016. In particular, in fig. 15A and 15B, a torsion spring 1500 is used to maintain tension on the sixth cable 1016. In fig. 15A, the torsion spring 1500 may be in a preloaded or loaded state, while in fig. 15B, the torsion spring 1500 may be in a preloaded or loaded state. Fig. 15A and 15B further illustrate a sixth cable 1016 routed within the second tube 206.

The torsion spring 1500 may take up slack within the sixth cable 1016 and/or allow a user to remove the HMD 100 without loosening the fourth cable 1010. That is, the user may remove the HMD 100 without actuating the second actuator 202. For example, it may be inconvenient to loosen the HMD 100 and re-tighten the HMD 100 in a later instance after the user has tightened the HMD 100. For example, the user may pause using the HMD 100. Rather than unclamping the HMD 100 via the second actuator 202, the torsion spring 1500 may provide a degree of play to allow the user to pull on the display housing 108 to separate the display housing 108 from the user's face. With this separation, the user may pull the HMD 100 over and/or over their head. Once the user has stopped pulling on the display housing 108, the torsion spring 1500 may be rewound to pull the sixth cable 1016 and reduce the distance between the front 104 and the rear 106 of the HMD 100.

In some cases, the torsion spring 1500 may include a third pulley 1304 around which a sixth cable 1016 is wrapped. Additionally or alternatively, the sixth cable 1016 may wrap or wrap around a protrusion or hook of the torsion spring 1500. Regardless of the particular embodiment, the sixth cable 1016 may be operably engaged with the torsion spring 1500 to provide a degree of travel. Additional details of the torsion spring are discussed herein with respect to fig. 16A-16D. In some cases, the torsion spring 1500 may provide play of a few millimeters, centimeters, or inches to allow a user to remove the HMD 100 and to re-wear the HMD 100. This play may temporarily change the size of the HMD 100. For example, in a preloaded or unloaded state as shown in fig. 15A, the third pulley 1304 or sixth cable 1016 may be looped around the torsion spring 1500 at the first position 1502. When a user pulls on the HMD 100 (e.g., on the display housing 108), the torsion spring 1500 may coil to position the third pulley 1304 or the sixth cable 1016 at the second position 1504. In the second position 1504, the torsion spring 1500 may be in a maximum coiled position. That is, at the second position 1504, the HMD 100 may not be pulled farther. This results in a gap distance 1506. In some cases, the gap distance may be thirteen millimeters. However, in the retracted state as shown in fig. 15A, the torsion spring 1500 may still apply a biasing force to remove slack within the sixth cable 1016.

Fig. 16A to 16D show various views of the torsion spring 1500. Specifically, fig. 16A shows an isometric view of the torsion spring 1500, fig. 16B shows a first side view of the torsion spring 1500, fig. 16C shows an end view of the torsion spring 1500, and fig. 16D shows a second side view of the torsion spring 1500.

The torsion spring 1500 may reside within the first and second lateral members 114, 116. For example, the torsion spring 1500 may reside within the end 1308 of the second lateral member 116. The torsion spring 1500 includes a body coil 1600 for providing biasing characteristics to the torsion spring 1500. The first end of the torsion spring 1500 may include a static leg 1602. The static leg 1602 may remain stationary during the winding and unwinding of the torsion spring 1500. In some cases, the static leg 1602 may be coupled to the first lateral member 114 and/or the second lateral member 116 to remain stationary.

A second end of torsion spring 1500 includes a dynamic leg 1604. As described above, the sixth cable 1016 may wrap around the dynamic leg 1604. For example, when a user provides a biasing force to the display housing 108, the sixth cable 1016 may be looped around the dynamic leg 1604 to pull on the dynamic leg 1604. The engagement between the sixth cable 1016 and the dynamic leg 1604 may be similar to a pulley such that the sixth cable 1016 may be looped or wrapped around the dynamic leg 1604. Alternatively, third pulley 1304 may be disposed about dynamic leg 1604.

Torsion spring 1500 may also include stop legs 1606. The stop leg 1606 may prevent the torsion spring 1500 from further coiling or uncoiling. For example, returning briefly to fig. 15B, the second lateral member 116 may have a degree of travel equal to the gap distance 1506. When second lateral member 116 extends clearance distance 1506, stop leg 1606 may prevent second lateral member 116 from being pulled further. This can further prevent the winding characteristics of the torsion spring 1500. In such cases, the stop leg 1606 may contact a protrusion of the first lateral member 114 or the second lateral member 116.

Fig. 17 shows a front isometric view of an HMD 1700, which in some cases may include similar components as HMD 100. For example, HMD 1700 may include a front 1702 and a back 1704. The front 1702 of the HMD 1700 may include a display housing 1706 that houses a display for outputting content to a user. The rear 1704 of the HMD 1700 may include a rear housing 1708.

The display housing 1706 may be coupled to the rear housing 1708 via one or more components. For example, the HMD 1700 may include a first lateral member 1710 that engages with a first lateral arm 1712 extending from the rear strap 1714. The second lateral member 1716 can be engaged with a second lateral arm 1718 extending from the rear strap 1714. The first lateral member 1710 may extend from various lengths relative to the first lateral arm 1712 for loosening and tightening the HMD 1700 for a user. That is, as similarly discussed above with respect to the first lateral member 114, the first lateral member 1710 may be slid over or otherwise engaged with the first lateral arm 1712 for adjusting the length. Similarly, the second lateral member 1716 can be engaged with the second lateral arm 1718.

Further, the HMD 1700 may include a top member 1720 that is disposed above the top of the user's head when the HMD 1700 is worn. The top member 1720 is adjustable in length for adjusting the vertical position of the display housing 1706 on the face of the user.

In some examples, HMD 1700 may include actuators for adjusting the lengths of first lateral member 1710, second lateral member 1716, and top member 1720. These actuators may be engaged with the wiring mechanism of the HMD 1700, as similarly discussed above with respect to the HMD 100. For example, the routing mechanisms of the first and second lateral members 1710, 1716 may be engaged with an actuator disposed at the rear 1704 of the rear housing 1708. Further, the wiring mechanism of the top member 1720 may be engaged with the first actuator 1722 at the rear housing 1708. As discussed in detail herein, the routing mechanism may route wires through one or more tubes of the HMD 1700.

HMD 1700 may include speakers to output audio to a user. For example, HMD 1700 may include a first speaker 1724 positioned adjacent to a user's left ear and a second speaker 1726 positioned adjacent to the user's right ear. As shown in fig. 17, a first speaker 1724 may be coupled to the first lateral member 1710 and a second speaker 1726 may be coupled to the second lateral member 1716. As such, first speaker 1724 and second speaker 1726 may move with first lateral member 1710 and second lateral member 1716, respectively, as first lateral member 1710 and second lateral member 1716 extend and/or retract, respectively.

In some cases, first speaker 1724 and/or second speaker 1726 may be pivotably coupled to first lateral member 1710 and second lateral member 1716, respectively. This may position first speaker 1724 and second speaker 1726 adjacent the user's left and right ears, respectively. For example, and as discussed in detail herein, the first speaker 1724 may be coupled to the first lateral member 1710 via a ball joint. The ball joint may provide different degrees of movement for first speaker 1724 to position first speaker 1724. Similarly, a second speaker 1726 may be coupled to the second lateral member 1716 via a ball joint for positioning the second speaker 1726. In addition, first speaker 1724 and/or second speaker 1726 may be slidable to adjust longitudinally. Assuming that the first and second lateral members 1710, 1716 may extend in various lengths, in addition to the pivotable movement, the lateral movement also provides the user with the option of repositioning the first and second speakers 1724, 1726.

Although first speaker 1724 and second speaker 1726 are shown coupled to first lateral member 1710 and second lateral member 1716, respectively, first speaker 1724 and second speaker 1726 may be coupled to rear housing 1708 or other portions of HMD 2200.

Fig. 18 shows a rear isometric view of HMD 1700. The rear portion 106 of the HMD 100 is shown to include a rear housing 1708. The rear housing 1708 may include similar components (e.g., antenna, processor, PCB, etc.) as described above with respect to the rear housing 200. In addition, the rear housing 1708 is shown to include a first actuator 1722 and a second actuator 1800.

Within the rear housing 200, a first actuator 1722 may be engaged with the wiring mechanism of the top member 1720 and a second actuator 1800 may be engaged with the wiring mechanism of the first lateral member 1710 and/or the second lateral member 1716. The first actuator 1722 and the top member 1720 may be used to adjust the HMD 100 vertically on or relative to the user's eyes, while the second actuator 1800 may be used to tighten and loosen the HMD 100. As also introduced above, the rear strap 1714 can include first and second lateral arms 1712, 1718 that engage with or within the first and second lateral members 1710, 1716, respectively.

Fig. 19A and 19B show front and rear views, respectively, of an HMD 1700. The first speaker 1724 may be coupled to the first lateral member 1710 via a first speaker arm 1900 and the second speaker 1726 may be coupled to the second lateral member 1716 via a second speaker arm 1902. As discussed herein, first speaker arm 1900 may be coupled to first lateral member 1710 via a ball joint for adjusting the position of first speaker 1724. Similarly, the second speaker arm 1902 may be coupled to the second lateral member 1716 via a ball joint for adjusting the position of the second speaker 1726. First speaker arm 1900 and second speaker arm 1902 may also be slid in direction 1904. The pivotable nature of first speaker arm 1900 and second speaker arm 1902, as well as the sliding nature in direction 1904, allow first speaker 1724 and second speaker 1726 to be repositioned according to user preferences.

In fig. 19B, HMD 1700 may include various tubes for routing or guiding cabling of a routing mechanism. For example, the first tube 1906 and the second tube 1908 are shown routed from the rear housing 1708 to the top member 1720. The first tube 1906 and the second tube 1908 may guide respective cables for extending and retracting the top member 102. Third tube 1910 and fourth tube 1912 are shown routed from first lateral member 1710 to rear housing 1708. The third tube 1910 and the fourth tube 1912 may guide cables for extending and retracting the first lateral member 1710, respectively. Fifth tube 1914 and sixth tube 1916 are shown routed from second lateral member 1716 to rear housing 1708. Fifth tube 1914 and sixth tube 1916 may guide cables for extending and retracting second lateral member 1716, respectively.

At the rear 1704 of the HMD 1700, a wiring mechanism may be engaged with the first actuator 1722 and the second actuator 1800. For example, the wiring mechanism of the top member 1720 may be engaged with the first actuator 1722. The engagement of the wiring mechanism of the top member 1720 with the first actuator 1722 may be similar to the engagement described above with respect to the HMD 100. Further, the routing mechanism of the first lateral member 1710 and the second lateral member 1716 can be engaged with the second actuator 1800. The engagement of the cabling mechanism of the first and second lateral members 1710, 1716 with the second actuator 1800 may be similar to the engagement described above with respect to the engagement of the first and second lateral members 114, 116 with the second actuator 202, respectively. Further, the cables may be routed within the first and second lateral members 1710, 1716, as similarly discussed above with respect to the first and second lateral members 114, 116.

Fig. 20A shows a cross-sectional view of components of the display HMD 100, such as the first lateral member 1710, the first speaker 1724, and the first speaker arm 1900. In some cases, the view shown in fig. 20A may represent a front cross-sectional view from the front 1702 toward the rear 1704 of the HMD 1700. While fig. 20A illustrates and discusses components of first lateral member 1710, first speaker 1724, and first speaker arm 1900, it should be understood that second lateral member 1716, second speaker 1726, and second speaker arm 1902 may similarly include similar components and/or functionality.

A first speaker 1724 may reside within the housing 2000. As shown, the housing 2000 may include a generally hemispherical shape in which the first speaker 1724 resides. The first speaker 1724 may be oriented to output sound in a direction toward the user. The first speaker 1724 may include a speaker grille 2002 having an aperture that allows sound generated by the first speaker 1724 to pass out of the housing 2000 and toward a user. The speaker grille 2002 can be coupled to the housing 2000 via snaps, fasteners, adhesives, and the like.

The first speaker arm 1900 is slidably engaged with/within the ball joint 2004 for longitudinal translation within the first speaker arm 1900. For example, as discussed above, first speaker arm 1900 may be engaged with ball joint 2004 (or a component thereof) to allow first speaker arm 1900 to translate in direction 1904. In some cases, direction 1904 may allow first speaker 1724 to be positioned horizontally and/or vertically with respect to a user. For example, ball joint 2004 may include a flange that engages within a slider or channel of first speaker arm 1900. Such engagement may allow first speaker arm 1900 to slidably engage ball joint 2004. In other words, the ball joint 2004 may slide within the first speaker arm 1900 for placement at various locations along the length of the first speaker arm 1900.

Ball joint 2004 is also pivotally coupled to first lateral member 1710 for changing the position and/or orientation of first speaker 1724. For example, the ball joint 2004 may provide rotational and/or pivotable movement for the first speaker arm 1900. As such, the first speaker 1724 may be disposed at various locations and/or orientations. For example, as the HMD 1700 accommodates a variety of users, the first speaker 1724 may be adjusted to accommodate different users.

In some cases, the ball of ball joint 2004 may extend from first lateral member 1710, and the socket of ball joint 2004 may be embodied within first speaker arm 1900. The first speaker arm 1900 may be coupled to the first lateral member 1710 via a ball and socket joint.

In some cases, wires, cables, or other filaments may be routed through ball joint 2004 for communicatively coupling first speaker 1724 with other portions of HMD 1700. For example, as shown, one or more wires 2006 may be routed through ball joints 2004. Wires 2006 may provide audio to first speaker 1724 for output. In so doing, wires 2006 may be routed through first speaker arm 1900 to reach first speaker 1724. Further, the wires 2006 may be routed through the first lateral member 1710. However, in some cases, HMD 1700 may include additional wires routed through first lateral member 1710 and/or first speaker arm 1900 for communicative coupling to first speaker 1724.

Fig. 20B shows a first speaker 1724. In some cases, the illustration shown in fig. 20B may represent a top cross-sectional view from the top of the HMD 1700 toward the bottom of the HMD 1700. As described above, the first speaker arm 1900 may be coupled to the first lateral member 1710 via the ball joint 2004, and the wire 2006 may be routed through the ball joint 2004 and the first speaker arm 1900.

Fig. 21 shows a detailed view of the HMD 1700 displaying wiring of wires for vertically adjusting the position of the HMD 1700 on the user. As described above, the HMD 1700 may include a first tube 1906 and a second tube 1908 extending from the rear housing 1708. In some cases, HMD 1700 may include additional tubes extending from rear housing 1708, such as seventh tube 2100. The first tube 1906 and the seventh tube 2100 may be attached or coupled together.

The first tube 1906 may receive the first inner tube 2102 and the second tube 1908 may receive the second inner tube 2104. The first inner tube 2102 and the second inner tube 2104 may be coupled to a display housing 1706. As shown, the first inner tube 2102 and the second inner tube 2104 may extend from the display housing 1706 and into the first tube 1906 and the second tube 1908, respectively. The first inner tube 2102 and the second inner tube 2104 can translate and/or slide into the first tube 1906 and the second tube 1908, respectively. In some cases, the first tube 1906 and/or the second tube 1908 can include a mechanism (e.g., a channel, tab, slot, protrusion, etc.) for allowing translation of the first inner tube 2102 and the second inner tube 2104, respectively.

HMD 1700 includes wires or cables routed through first tube 1906, second tube 1908, seventh tube 2100, first inner tube 2102, and/or second inner tube 2104. For example, the HMD 1700 may include a first cable 2106 and a second cable 2108. In some cases, the first cable 2106 may correspond to an extension cable that, when pulled, causes the display housing 1706 to be lowered on the user. Meanwhile, the second cable 2108 may correspond to a retract cable that when pulled causes the display housing 1706 to rise on the user. The first cable 2106 and the second cable 2108 can be operably coupled to the first actuator 1722 to extend and retract in length (e.g., via a spool or reel).

As shown, the first cable 2106 may be routed from the rear housing 1708 through the seventh tube 2100 and then into the first tube 1906. In some cases, an end of the first cable 2106 can be coupled to the first inner tube 2102 at a location 2110. Additionally, the first cable 2106 can be wrapped or wound around one or more pulleys within or outside of the seventh tube 2100 and/or the first tube 1906. In addition, a pulley may be located on top member 1720. The second cable 2108 may be routed through the second tube 2108, through the second inner tube 2104, and coupled to the display housing 1706 at location 2112.

Fig. 22 shows an HMD 2200 with a dual concentric knob 2202 disposed at a rear of the HMD 2200. In some cases, HMD 2200 may include similar components as HMD 100 and/or HMD 1700. However, as shown in fig. 22, HMD 100 may include a dual concentric knob 2202 for tightening, loosening, and/or adjusting the vertical position of HMD 2200 on the user.

The dual concentric knob 2202 may be engaged with one or more members used to tighten and loosen the HMD 2200 and/or adjust the vertical position of the HMD 2200 for a user. In some cases, the one or more components may be engaged with a dual concentric knob 2202 within a rear housing of the HMD 2200. For example, the top member may extend through the top collet 2204 and engage with the dual concentric knob 2202. The lateral members may extend through the first and second lateral jackets 2206, 2208, respectively. In some cases, the top jacket 2204, the first lateral jacket 2206, and/or the second lateral jacket 2208 may represent a strap of the HMD 2200 or a rear housing of the HMD 2200 that engages a rear portion of the head.

The dual concentric knob 2202 may include a first knob 2210 and a second knob 2212. The first knob 2210 is operable to adjust the vertical position of the display (or display housing) of the HMD 2200 on the head. The second knob 2212 is operable to tighten and loosen the HMD 100 for a user. That is, a top member disposed within top collet 2204 may be operably engaged with first knob 2210. Lateral members disposed within the first and second lateral jackets 2206, 2208 are operably engaged with the second knob 2212.

It is discussed herein that the first knob 2210 and the second knob 2212 may include gears that engage slots of the top member and the side member, respectively. The lateral members may overlap to allow the lateral members to tighten and loosen. The first knob 2210 and the second knob 2212 may be independently actuated in multiple directions. For example, the first knob 2210 may be engaged with the top member and rotated in a first direction (e.g., clockwise) to lower the display on the user and rotated in a second direction (e.g., counter-clockwise) to raise the display on the user. The second knob 2212 may be engaged with the lateral member and rotated in a first direction (e.g., clockwise) to loosen the HMD 2200 and rotated in a second direction (e.g., counter-clockwise) to tighten the HMD 2200.

Fig. 23A and 23B show detailed views of the dual concentric knob 2202. Specifically, fig. 23A shows a side view of the dual concentric knob 2202, and seven fig. 23B show cross-sectional views of the dual concentric knob 2202. As shown, the first knob 2210 may nest, house, or reside within at least a portion of the second knob 2212.

The first knob 2210 may include a first member, mechanism, or shaft 2300 that extends through the second knob 2212 for adjusting the vertical position of the HMD 2200. The first gear 2302 of the first shaft 2300 may be engaged with a slot provided in or extending along the length of the top member. Rotating the first knob 2210 may cause the first gear 2302 to engage a slot in the top member for raising or lowering the display housing. The thrust bearing between the first gear 2302 and the second gear 2306 keeps the belt separated.

Similarly, the second knob 2212 may include a second member, mechanism or shaft 2304. In some cases, the second shaft 2304 may be integrated within the second knob 2212 (e.g., as a single component). The second shaft 2304 may include a second gear 2306 that engages a slot provided in or extending along the length of the lateral member. As shown, the second gear 2306 may have a greater longitudinal length for engagement with multiple members (e.g., two lateral members) than the first gear 2302, which may be engaged with a single member (e.g., a top member).

The first shaft 2300 may be coupled to the third gear 2308 for preventing back drive of the top member and/or the first knob 2210. The third gear 2308 may represent a face gear that engages with a complementary face gear of the rear housing. For example, the teeth of the third gear 2308 may engage with the teeth of additional gears in the rear housing to prevent backdrive. Similarly, the second shaft 2304 may be coupled to the fourth gear 2310 for preventing back-driving of the lateral member and/or the second knob 2212. The fourth gear 2310 may represent a face gear engaged with a complementary face gear of the rear housing. For example, the teeth of the fourth gear 2310 may engage with the teeth of an additional gear on the housing to prevent backdriving.

In some cases, a gap distance 2312 may be interposed between the first knob 2210 and the second knob 2212. The spring 2314 may wrap around a portion of the first shaft 2300 between a surface of the first knob 2210 and a surface of the second knob 2212, thereby serving to dispose the first knob 2210 away from the second knob 2212. In the event that the user wishes to adjust the position of the display housing vertically, the user may push on the first knob 2210 to deflect the first knob 2210 inwardly. This deflection may disengage the third gear 2308 from a complementary gear in the rear housing and allow the user to lower or raise the display housing. Although FIG. 23B shows the spring 2314 in a particular position, the spring 2314 may be located elsewhere within the rear housing and/or the dual concentric knob 2202.

Fig. 24A and 24B show isometric views of dual concentric knob 2202. As described above, the dual concentric knob 2202 may include a plurality of actuators, such as a first knob 2210 to adjust the vertical position of the display housing, and a second knob 2212 to tighten and loosen against the lateral sides of the head.

As shown, the first knob 2210 and the second knob 2212 may be in a stacked relationship. In some cases, the first knob 2210 may be disposed forward of the second knob 2212 and the second knob 2212 may include a larger diameter than the first knob 2210. In addition, the first knob 2210 and the second knob 2212 may be concentric.

Fig. 25 shows a rear isometric view of HMD 2200 showing the components engaged with dual concentric knob 2202. HMD 2200 may include top member 2500 that engages with first knob 2210 of dual concentric knob 2202 for adjusting the vertical position of the display. Additionally, HMD 2200 may include a first lateral member 2502 and a second lateral member 2504 that engage with second knob 2212 of dual concentric knob 2202 for tightening/loosening HMD 2200. Opposite ends of the top member 2500, the first side member 2502, and the second side member 2504 that are not coupled or engaged with the dual concentric knob 2202 may be engaged with a display or display housing. Additionally, each of the top member 2500, the first side member 2502, and the second side member 2504 may include a slot for engagement with the first knob 2210 or the second knob 2212, respectively.

Fig. 26 shows a rear view of dual concentric knob 2202 showing engagement with top member 2500, first lateral member 2502, and second lateral member 2504.

The top member 2500 includes a slot 2600 extending along at least a portion of the length of the top member 2500 and configured to engage the first gear 2302 of the first knob 2210. Depending on the direction of actuation, the first knob 2210 engages with the slot 2600 for shortening the length of the top member 2500 (e.g., raising the display) or increasing the length of the top member 2500 (e.g., lowering the display).

The first lateral member 2502 includes a slot 2602 extending along at least a portion of the length of the first lateral member 2502 and configured to engage the second gear 2306 of the second knob 2212. In addition, the second lateral member 2504 includes a slot 2604 extending along at least a portion of the length of the second lateral member 2504 and configured to engage the second gear 2306 of the second knob 2212. Depending on the direction of actuation, the second knob 2212 engages with the slots 2602 and 2604 for shortening the length of the first and second lateral members 2502 and 2504 (e.g., tightening the HMD 2200), or increasing the length of the first and second lateral members 2502 and 2504 (e.g., loosening the HMD 2200).

In some cases, the top member 2500, the first side member 2502, and the second side member 2504 comprise flexible and/or semi-rigid materials for routing beside or above the top of the head. For example, the top member 2500, the first side member 2502, and the second side member 2504 may be made of materials such as plastic, rubber, composite materials, and the like.

Fig. 27 shows a rear view of HMD 2200 showing dual concentric knob 2202 engaged with top member 2500, first lateral member 2502, and second lateral member 2504. Rotating the second knob 2212 in a first direction (e.g., clockwise) increases the overlapping relationship between the first and second lateral members 2502, 2504. Rotating the second knob 2212 in the opposite direction will decrease the overlapping relationship.

Fig. 28A-28C illustrate a planetary gear transmission 2800 that can be used to tighten and loosen the HMD. In some examples, the planetary gear transmission 2800 may be embodied within the HMD 2200.

Planetary gear assembly 2800 is shown to include gears and ratchets for tightening and loosening the HMD and/or vertically adjusting the position of the display of the HMD on the user. As shown in fig. 28A, planetary gear 2800 may include a knob 2802. The knob 2802 may be operably coupled to a first gear 2804 and a second gear 2806. The first gear 2804 may engage with a slot of a lateral member for tightening and loosening the HMD (e.g., rack and pinion) to a user. The operation of the first gear 2804 and the lateral members may be similar to the operation described above with respect to the second gear 2306, the first lateral member 2502, and the second lateral member 2504. The second gear 2806 can engage with a slot of the top member for raising and lowering the user's display (e.g., rack and pinion). The operation of the second gear 2806 with the top member may be similar to the operation described above with respect to the first gear 2302 and the top member 2500. In addition, the planetary gear 2800 may include a third gear 2808 and a fourth gear 2810 for preventing reverse driving.

In some cases, planetary gear assembly 2800 may be configured to extend/retract the top member, the first lateral member, and/or the second lateral member simultaneously (i.e., concurrently). That is, planetary gear assembly 2800 may include a single knob for simultaneously adjusting the top member, the first lateral member, and/or the second lateral member. Planetary gear transmission 2800 may have planetary gears 2812 for extending/retracting the top member and the first/second lateral members in different lengths. For example, with respect to planetary gear 2812, a quarter turn of knob 2802 may retract the top member a first amount and may retract the first lateral member and the second rear member a second amount different from the first amount.

Fig. 29A-29C illustrate an exemplary gasket 2900 coupled to display housing 108 (or a frame of display housing 108), display housing 1706 (or a frame of display housing 1706), and/or a display housing of HMD 2200.

Beginning with fig. 29A, the gasket 2900 may include a first side 2902 (or surface) for coupling to the display housing 108 and an opposing second side 2904 (or surface) for sealing against a user. The second side 2904 of the gasket 2900 may include features, contours, surfaces, and shapes for matching ergonomic factors of a user. This may allow gasket 2900 to wrap around the front of the user's head and seal against the user's face. For example, when HMD 100 and/or 1700 are secured to a user, gasket 2900 may prevent light or may substantially prevent light from penetrating into the interior of display housing 108 and/or display housing 1706.

As shown, the second side 2904 of the gasket 2900 may include a plurality of curved surfaces that generally correspond to facial features of a user. For example, second side 2904 may include or consist of forehead portion 2906, first cheek portion 2908, second cheek portion 2910, and nose portion 2912 extending between first cheek portion 2908 and second cheek portion 2910. Forehead portion 2906 may be oriented and/or curved across the forehead of the user to seal gasket 2900 to the user along the top. The first cheek portion 2908 and the second cheek portion 2910 may seal the gasket 2900 at lateral sides (e.g., against the user's cheek). The nose portion 2912 may follow the bottom sealing gasket 2900.

In general, forehead portion 2906, first cheek portion 2908, second cheek portion 2910, and nose portion 2912 may help position or locate HMD 100 and/or HMD1700 relative to a user's eyes. In addition, forehead portion 2906, first cheek portion 2908, second cheek portion 2910, and nose portion 2912 may provide a continuous surface that is shaped to abut and conform to the head (or face) of the user.

To provide a custom fit according to user preferences, gasket 2900 is configured to deform and warp. For example, as described above, HMD 100 and/or HMD1700 may be fastened to a user's head to provide a different feel and/or securely mount to the user. In such cases, and depending on the level of tightness, the gasket 2900 may maintain contact with the user's face. In this sense, the gasket 2900 may be resilient or include a degree of travel for abutment against the face of the user. This may be achieved by deformation (e.g., expansion and contraction) of the gasket 2900. For example, the gasket 2900 may include a middle portion 2914 interposed between the first side 2902 and the second side 2904. The intermediate portion 2914 may deflect, bend, roll, crush during tightening of the HMD 100 and/or 1700. Further, the intermediate portion 2914 may extend, spread, or expand during the undoing of the HMD 100 and/or 1700. Such deformation of the intermediate portion 2914 may enable maintaining contact with the user's face during loosening and tightening of the HMD 100 and/or the HMD1700 to the user.

In some cases, gasket 2900 may be permanently coupled to display housing 108 and/or display housing 1706 via an adhesive, fastener, clamping, compression, or the like. Additionally or alternatively, in some cases, gasket 2900 may be removably coupled to display housing 108 and/or display housing 1706 via magnets, hooks and loops, press-fit, snap-fit, or the like. For example, gasket 2900 may be removably coupled to display housing 108 and/or display housing 1706 for cleaning and/or sanitizing. Additionally, the display housing 108 and/or the display housing 1706 may be configured to receive a plurality of washers 2900, wherein each washer 2900 may include a respective contour, shape, size, or the like. By interchanging washers 2900, a user may achieve different sensations and/or be used to securely mount HMD 100 and/or HMD 1700, and/or different washers may be used for faces of different sizes or shapes.

Gasket 2900 may include a deformable material that conforms to the shape of the user. For example, in some cases, the gasket 2900 may be made of an elastic material (e.g., a synthetic material or a rubber material). Such a material may assist in conforming to the user, providing a tight seal, and allowing gasket 2900 to be repeatedly sterilized, cleaned, and reused.

Fig. 29B shows a rear view of the gasket 2900 showing the second side 2904. As described above, the second side 2904 may include a continuous body for abutting and sealing against the face of the user. In some cases, the second side 2904 may include a surface for sealing against the face of the user. The surface may be flat, curved and/or rounded. Such contours may help limit light entry and/or for providing a pleasant feel.

Fig. 29C shows a cross-sectional view of gasket 2900 taken along line A-A of fig. 29B. As shown, the first side 2902 of the gasket 2900 may include a surface for coupling to the display housing 108 and/or the display housing 1706, while the second side 2904 of the gasket 2900 may include a surface for engaging the face of a user. In some cases, the surface of the second side 2904 may include a particular length, width, and/or height for abutting against and sealing to the face of the user. Further, as discussed above, the middle portion 2914 may span between the first side 2902 (or the surface of the first side 2902, the body, etc.) and the second side 2904 (or the surface of the first side 2902, the body, etc.).

The intermediate portion 2914 may extend and contact various lengths and maintain contact with the user based on tightening and loosening of the HMD 100 and/or 1700. For example, as shown in fig. 29C, the middle portion 2914 may be in an extended state (e.g., the middle portion 2914 may not be subjected to a compressive force). However, if HMD 1700 and/or HMD 1700 are tightened, intermediate portion 2914 may shrink, bend, roll, or fold upon itself. For example, the middle portion 2914 near the forehead portion 2906 may deflect downward toward the nose portion 2912. When released, the middle portion 2914 may expand, spread or unfold. This resiliency of the middle portion 2914 may provide a degree of movement and/or formation of the gasket 2900 for maintaining contact with the user's face.

While various examples and embodiments are described herein separately, these examples and embodiments may be combined, rearranged, and modified to implement other variations within the scope of the disclosure.

Although the subject matter has been described in language specific to structural features and/or methodological acts, it is to be understood that the subject matter defined in the appended claims is not necessarily limited to the specific features or acts described. Rather, the specific features and acts are disclosed as illustrative forms of implementing the claims.

Claims

1. A head mounted display, comprising:

a display housing including a display;

a rear housing comprising:

a first actuator; and

a second actuator;

a rear strap coupled to the rear housing, the rear strap comprising:

a first arm;

a second arm; and

a third arm;

a collet coupled to the first arm and extending in a direction toward the display housing;

a first member including a first end coupled to the display housing and a second end disposed within the collet, the first member being operably coupled to the first arm;

A second member coupled to the first side of the display housing and extending in a direction toward the rear housing, the second member being operably engaged with the second arm;

a third member coupled to the second side of the display housing and extending in a direction toward the rear housing, the second member being operably engaged with the third arm;

a first routing mechanism configured to extend and retract the first member from the collet in various lengths, the first routing mechanism being operably engaged with the first actuator;

a second routing mechanism configured to extend and retract the second member from the second arm in various lengths, the second routing mechanism operably engaged with the second actuator; and

a third routing mechanism configured to extend and retract the third member from the third arm in various lengths, the third routing mechanism being operably engaged with the second actuator.

2. The head mounted display of claim 1, further comprising a face gasket, the face gasket comprising:

A first portion coupled to the display housing;

a second portion for engagement with a user; and

an intermediate portion disposed between the first portion and the second portion, wherein the intermediate portion is configured to deform to adjust a distance between the first portion and the second portion.

3. The head mounted display of claim 1, further comprising:

a first speaker arm, the first speaker arm comprising:

a first end pivotably coupled to the second member; and

a second end;

a first speaker coupled to the second end of the first arm;

a second speaker arm, the second speaker arm comprising:

a first end pivotably coupled to the third member; and

a second end; and

a second speaker coupled to the second end of the second arm.

4. The head mounted display of claim 1, wherein:

the first wiring mechanism includes:

one or more first pulleys;

one or more second pulleys;

A first cable routed around the one or more first pulleys; and

a second cable routed around the one or more second pulleys;

the second wiring mechanism includes:

one or more third pulleys;

one or more fourth pulleys;

a third cable routed around the one or more third pulleys; and

a fourth cable routed around the one or more fourth pulleys; and the third wiring mechanism includes:

one or more fifth pulleys;

one or more sixth pulleys;

a fifth cable routed around the one or more fifth pulleys; and

a sixth cable routed around the one or more sixth pulleys.

5. The head mounted display of claim 4, wherein:

actuating the first actuator in a first direction causes the first cable to extend the first member from the first arm;

actuating the first actuator in a second direction causes the second cable to retract the first member over the first arm;

actuating the second actuator in a third direction causes the third cable to extend the second member from the second arm;

Actuating the second actuator in a fourth direction causes the fourth cable to retract the second member above the second arm;

actuating the second actuator in the third direction causes the fifth cable to extend the third member from the third arm; and is also provided with

Actuating the second actuator in the fourth direction causes the sixth cable to retract the third member over the third arm.

6. The head mounted display of claim 1, wherein the rear strap is pivotably coupled to the rear housing via a ball joint.

7. A head mounted display, comprising:

a front part;

a rear portion;

a first member extending between the front portion and the rear portion, the first member being adjustable via actuation of a first rotatable actuator and a first wiring mechanism;

a second member extending between the front and rear portions, the second member being adjustable via actuation of a second rotatable actuator and a second wiring mechanism; and

a third member extending between the front and rear portions, the third member being adjustable via the actuation of the second rotatable actuator and a third wiring mechanism.

8. The head mounted display of claim 7, further comprising:

a first speaker pivotably coupled to the second member via a first spherical joint; and

a second speaker is pivotably coupled to the third member via a second spherical joint.

9. The head mounted display of claim 8, further comprising a first speaker arm including the first speaker and a second speaker arm including the second speaker, and wherein:

the first speaker arm is slidably engaged with the first ball joint; and is also provided with

The second speaker arm is slidably engaged with the second ball joint.

10. The head mounted display of claim 7, wherein:

the first wiring mechanism includes:

one or more first pulleys associated with retracting the first member;

one or more second pulleys associated with extending the first member;

a first cable routed around the one or more first pulleys; and

A second cable routed around the one or more second pulleys;

the second wiring mechanism includes:

one or more third pulleys associated with retracting the second member;

one or more fourth pulleys associated with extending the second member;

a third cable routed around the one or more third pulleys; and

a fourth cable routed around the one or more fourth pulleys; and is also provided with

The third wiring mechanism includes:

one or more fifth pulleys associated with retracting the third member;

one or more sixth pulleys associated with extending the third member;

a fifth cable routed around the one or more fifth pulleys; and

a sixth cable routed around the one or more sixth pulleys.

11. The head mounted display of claim 10, further comprising a first arm extending from the rear portion and operably engaged with the first member, a second arm extending from the rear portion and operably engaged with the second member, and a third arm extending from the rear portion and operably engaged with the third member, and wherein at least one of:

The one or more first pulleys or the one or more second pulleys are disposed within or coupled to at least one of the first member or the first arm;

the one or more third pulleys or the one or more fourth pulleys are disposed within or coupled to at least one of the second member or the second arm; or alternatively

The one or more fifth pulleys or the one or more sixth pulleys are disposed within or coupled to at least one of the third member or the third arm.

12. The head mounted display of claim 11, wherein:

the first rotatable actuator is operably coupled to the first cable and the second cable; and is also provided with

The second rotatable actuator is operably coupled to the third cable, the fourth cable, the fifth cable, and the sixth cable.

13. A wearable display, comprising:

a front part;

a rear portion;

a first member extending between the front portion and the rear portion, the first member including a first slot extending along a length of the first member;

A second member extending between the front and rear portions, the second member including a second slot extending along a length of the second member;

a third member extending between the front and rear portions, the third member including a third slot extending along a length of the third member;

a first actuator comprising a first gear, wherein the first gear is configured to engage with the first slot; and

a second actuator comprising a second gear, wherein the second gear is configured to engage with the second slot and the third slot.

14. The wearable display of claim 13, wherein the first actuator and the second actuator are concentric.

15. The wearable display of claim 13, wherein:

actuating the first actuator in a first direction extends the first member for adjusting a vertical position of the wearable display;

actuating the first actuator in a second direction retracts the first member for adjusting the vertical position of the wearable display;

Actuating the second actuator in a third direction extends the second member and the third member for releasing the wearable display; and is also provided with

Actuating the second actuator in a fourth direction retracts the second member and the third member for tightening the wearable display.

16. The wearable display of claim 13, further comprising:

17. The wearable display of claim 13, further comprising:

a display housing located at the front; and

a face gasket coupled to the display housing, the face gasket comprising:

a first portion coupled to the display housing;

a second portion for engagement with a user; and

18. The wearable display of claim 13, wherein the second member and the third member are configured to overlap at the rear portion.

19. The wearable display of claim 13, further comprising a rear housing disposed at the rear, the rear housing comprising a third gear and a fourth gear, and wherein:

the first actuator further includes a fifth gear engaged with the third gear for reducing back drive of the first actuator; and is also provided with

The second actuator further includes a sixth gear engaged with the fourth gear for reducing back drive of the second actuator.

20. The wearable display of claim 13, further comprising a display housing disposed at the front and a rear strap disposed at the rear, and wherein:

a first end of the first member is coupled to the display housing;

the second end of the first member is disposed within the rear belt;

the first end of the second member is coupled to the display housing;

the second end of the second member is disposed within the rear belt;

the first end of the third member is coupled to the display housing, and

The second end of the third member is disposed within the rear belt.